Method for producing high viscosity materials
AssigneeHitachi, Ltd.
InventorsHidekazu Nakamoto, Chikao Oda, Norio Nakazato, Morihisa Maruko, Kazuo Ihara, Takatoshi Kinoshita, Tokinobu Furukawa, Kenichi Watanabe
Life of this patent
Estimating the term…
Abstract
Agitator blades formed by connecting a plurality of frame members are provided in a cylindrical or conical container to realize the agitator blade structure without rotary shaft. Therefore, less liquids being treated adhere onto the rotary shaft or the agitator blades and less residue of the liquids is formed, making it possible to obtain a final high viscosity polymer using the same agitator vessel preventing the quality from being deteriorated.
Claims20
A method of producing high viscosity materials having a viscosity of at least 10,000 poise, comprising a step of performing a bulk polymerization reaction of liquids in an agitator vessel, the liquids being agitated during the polymerization reaction by a rotation of a plurality of vertical blades mounted in at least first and second frame members, the liquids in the agitator vessel increasing in viscosity during said performing step to form the high viscosity materials having the viscosity of at least 10,000 poise, wherein each of said vertical blades is rearwardly inclined relative to the direction in which an agitating blade proceeds so that one part of a mass of the liquids overflows rearwardly beyond upper and lower ends of each of said vertical blades whereas another part of said mass of the liquids is moved upwardly along each vertical blade from one frame member to a frame member thereabove.
Dependencies are inferred from the claim text.